Survivor Mains - When Did You Discover . . .
. . . That you had become a Killer main.
It happened so gradually for me that one day I just woke up and realized that I wasn't playing Survivor any more (or very rarely - mostly for Rift tasks / Dailys) and that I had in fact become a Killer main.
It took about 2 years but I guess all the salt gradually morphed me into a Killer main.